Home / 82,601,968.80-114,107,282.30-66,191,109.60

Finding the Fourth Proportional to 82,601,968.80, 114,107,282.30 and 66,191,109.60

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Solution

The fourth proportional to 82,601,968.80, 114,107,282.30 and 66,191,109.60 is: 91,437,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,601,968.80 : 114,107,282.30 = 66,191,109.60 : x
  2. Step 2: Convert to fraction form
    82,601,968.80/114,107,282.30 = 66,191,109.60/x
  3. Step 3: Cross multiply
    82,601,968.80x = 114,107,282.30 × 66,191,109.60
  4. Step 4: Simplify right side
    82,601,968.80x = 7,552,887,628,877,440
  5. Step 5: Solve for x
    x = 7,552,887,628,877,440/82,601,968.80
  6. Step 6: Final answer
    x = 91,437,138.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.